Rarely used electric air purifier for sale ($40) to pick up in Menlo Park Downtown:

High-performance HEPA filter captures 99% of dander and airborne particles as small as 3 microns
Captures particulates from pet dander, dust, dust mite debris, pollen and mold/mildew spores
Quiet and compact, yet offers powerful air-cleaning performance
Permanent filter never needs replacing and saves up to $49 a year versus a comparable filter
Easy-care, permanent filter vacuums clean
Effective performance for large, 160 square foot rooms
Perfect for the bedroom, office, den or small to medium-sized living areas
Works horizontally or vertically, so it’s easy to move from place to place
3 speeds: set on high for the fastest cleaning, medium for all-day use or low when extra quiet is needed
Dimensions (inches): 13.54 H x 6 W x 8.5 D

Please contact me at schlexer@stanford.edu to buy the purifier.